SPI 09-687 Standard Piston Snowmobiles Cat 73.4MM

( Brand: Spi ), ( Manufacturer Part Number: 09-687 ), ( Part Type: Piston )

Review SPI Standard Bore Piston Kits Arctic Cat Snowmobiles 73.4mm fits 550 1991–2005

Introducing the SPI 09-687 Standard Piston, an essential component designed specifically for Arctic Cat 550 snowmobiles manufactured between 1991 and 2005. This piston is engineered to fit snowmobiles with a 73.4mm bore size.

Crafted from high-quality materials, the SPI 09-687 Standard Piston is built to withstand the rigors of snowmobiling in various conditions. This piston is meticulously designed to meet the SPI (Snowmobiles Performance Industries) 09-687 standard, ensuring a perfect fit and reliable performance.

The piston features a forged design, which provides superior strength and durability. Its ring grooves are precision machined to ensure optimal ring sealing, reducing the risk of blow-by and engine oil consumption. The piston's skirt is designed to minimize friction and wear, ensuring smooth operation and long-lasting performance.

The SPI 09-687 Standard Piston comes with a ring package that includes a compression ring, an oil control ring, and a skirt oil scraper ring. These rings are designed to optimize engine performance and efficiency, ensuring optimal power delivery and fuel economy.

Installation of the SPI 09-687 Standard Piston is straightforward, making it an ideal choice for DIY enthusiasts or professional mechanics. The piston comes with clear installation instructions, ensuring a hassle-free installation process.

In summary, the SPI 09-687 Standard Piston is a high-performance, reliable, and durable replacement piston specifically designed for Arctic Cat 550 snowmobiles with a 73.4mm bore size. Its forged design, precision machined ring grooves, and high-quality materials make it an excellent choice for snowmobilers seeking top-notch performance and longevity.

Buying a SPI 09-687 standard piston for Arctic Cat 550 snowmobiles (1991-2005, 73.4mm bore) comes with several pros and cons that you should consider before making a purchase.

1. Improved Performance: A new piston can help improve the overall performance of your snowmobile engine by reducing engine wear and providing better compression.

2. Increased Power: A high-quality piston like the SPI 09-687 can help increase power output, giving you more thrust and acceleration on the trail.

3. Longer Engine Life: By replacing worn-out or damaged pistons, you can extend the life of your engine and prevent costly repairs down the line.

4. Better Fuel Efficiency: A well-functioning piston can help improve fuel efficiency, saving you money on fuel costs over time.

1. Cost: Replacing a piston can be an expensive repair, especially if you choose to purchase a high-performance aftermarket option like the SPI 09-687.

2. Installation Complexity: Installing a new piston can be a complex process that requires specialized tools and knowledge. It may be necessary to take your snowmobile to a professional mechanic for installation.

3. Risk of Damage: During the installation process, there is a risk of damaging other engine components if the installation is not done correctly.

4. Potential for Engine Upgrades: Installing a high-performance piston like the SPI 09-687 may require additional engine upgrades to ensure proper functionality and prevent damage to the engine.

In conclusion, buying a SPI 09-687 standard piston for your Arctic Cat 550 snowmobile (1991-2005, 73.4mm) can provide numerous benefits, including improved performance, increased power, longer engine life, and better fuel efficiency. However, the cost and installation complexity of the repair, as well as the risk of damage and potential need for engine upgrades, should be carefully considered before making a purchase. Ultimately, if you are looking for optimal performance and longevity from your snowmobile, investing in a high-quality aftermarket piston like the SPI 09-687 may be worth the expense. If you are unsure about the installation process or the need for additional engine upgrades, it is recommended that you consult with a professional mechanic to ensure a successful repair.

Details:

Manufactured by SPI. Piston weight is compatible with original piston. Pistons are for standard bore size 73.40mm. All SPI pistons, rings, pins cir clips are manufactured to OEM specifications.

Includes 2 pistons, ring sets, wrist pins cir clips as pictured. Compatible with Arctic Cat model's below: 1991 EXT 550 Special. 1992 EXT 550. T-Molly series pistons reduce friction, resist seizure improve durability.

T-Molly series with Teflon-Molybdenum coating. Made in Taiwan.

part #: 09687 prices

• $67.96-$184.99

specifications enginesnowmobile:

• for models: 550
• for makes: Arctic, Arctic-cat
• for years: 1991-2005
• brand: Spi
• mpn: 09-687
• part type: Piston

seller enginesnowmobile:

• rating: 99.4%
• # reviews: 385008
• city: Suamico, Wisconsin

offer enginesnowmobile:

• started: February 17, 2025
• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 4

shipping enginesnowmobile:

• transit: 3-7 Days
• cost: $0.00
• class: Standard
• type: Fixed
• service: Standard

payments enginesnowmobile:

• other
• wallet: Google-pay
• credit card: Diners-club

returns enginesnowmobile:

• time: 60 Days
• paid by: Buyer
• policy: Returns Accepted

general enginesnowmobile:

• condition: New
• Snowmobile Parts > Engines Components > Snowmobile Engine Components

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